copr-builder: run cleanup script after each builder release

Under root, so we can clean-up everything needed:

Fixes: https://pagure.io/copr/copr/issue/1258

roles/copr/backend/tasks/resalloc.yml

@@ -62,6 +62,7 @@
   - vm-aws-new
   - vm-aws-delete
   - vm-check
+  - vm-release
   tags:
   - provision_config
 

roles/copr/backend/templates/resalloc/pools.yaml

@@ -21,6 +21,7 @@ aws_x86_64_{% if spot %}spot{% else %}normal{% endif %}_{% if devel %}dev{% else
     cmd_new: "/var/lib/resallocserver/resalloc_provision/vm-aws-new --arch=x86_64 {% if spot %}--spot{% endif %}"
     cmd_delete: "/var/lib/resallocserver/resalloc_provision/vm-aws-delete"
     cmd_livecheck: "/var/lib/resallocserver/resalloc_provision/vm-check"
+    cmd_release: "/var/lib/resallocserver/resalloc_provision/vm-release"
     livecheck_period: 180
     reuse_opportunity_time: 180
     reuse_max_count: 8
@@ -40,6 +41,7 @@ aws_aarch64_{% if spot %}spot{% else %}normal{% endif %}_{% if devel %}dev{% els
     cmd_new: "/var/lib/resallocserver/resalloc_provision/vm-aws-new --arch=aarch64 {% if spot %}--spot{% endif %}"
     cmd_delete: "/var/lib/resallocserver/resalloc_provision/vm-aws-delete"
     cmd_livecheck: "/var/lib/resallocserver/resalloc_provision/vm-check"
+    cmd_release: "/var/lib/resallocserver/resalloc_provision/vm-release"
     livecheck_period: 180
     reuse_opportunity_time: 180
     reuse_max_count: 8
@@ -78,6 +80,7 @@ copr_hv_x86_64_{{ hv }}_{% if devel %}dev{% else %}prod{% endif %}:
     cmd_delete: "/var/lib/resallocserver/provision/libvirt-new --swap-vol-size 168"
     cmd_delete: "/var/lib/resallocserver/provision/libvirt-delete"
     cmd_livecheck: "/var/lib/resallocserver/resalloc_provision/vm-check"
+    cmd_release: "/var/lib/resallocserver/resalloc_provision/vm-release"
     livecheck_period: 180
     reuse_opportunity_time: 180
     reuse_max_count: 8

roles/copr/backend/templates/resalloc/vm-release

@@ -0,0 +1,13 @@
+#! /bin/sh
+
+die() { echo "$*" >&2 ; exit 1; }
+
+set -x
+set -e
+test -n "$RESALLOC_NAME"
+test -n "$RESALLOC_RESOURCE_DATA"
+
+# we only put IP out in spawning script, nothing else
+set -- $(echo "$RESALLOC_RESOURCE_DATA" | base64 --decode)
+IP=$1
+ssh -o ConnectTimeout=10 "root@$IP" copr-builder-cleanup